4659660 Excavator Rubber Components Inside the Windshield for ZX200-3 ZX240-3 ZX270-3 ZX330-3 

Part number 4659660 is the official part number for the rubber sealing strip of Hitachi's original excavator windshield. This component is a key sealing element between the windshield of the cab and the body frame, responsible for filling the gap between the glass and the metal frame, effectively preventing rainwater, dust, sediment, and noise from entering the cab, while also playing a role in buffering, shock absorption, thermal insulation, and ensuring the airtightness, cleanliness, and operational comfort of the cab. It is an important vulnerable component for maintaining the integrity of the excavator cab environment. As an original standard component, it is widely compatible with the windshield installation parts of multiple Hitachi excavator models, such as ZX200, ZX220, ZX240, ZX250, ZX330, ZX350 and other ZX series, as well as EX200, EX220, EX300 and other EX series excavators.

The original windshield rubber sealing strip is an extruded elastic sealing component. Its core function is to utilize the high elasticity and low compression permanent deformation characteristics of rubber materials to form a durable and tight physical seal between glass and frame, block the intrusion of external environmental media, absorb vibration and impact during vehicle driving and operation, and protect the glass edge from stress concentration and rupture. As an original component, it is usually made of high-quality ethylene propylene diene monomer (EPDM) rubber, which has excellent weather resistance (UV and ozone resistance), high and low temperature resistance (working temperature range can reach -40 ° C to+120 ° C or above), aging resistance, and certain oil and chemical corrosion resistance. Its cross-sectional design is meticulously calculated and typically includes multiple lips, cavities, or metal frames (reinforcing ribs) to achieve multiple seals and better clamping forces.

The maintenance core of the windshield sealing strip lies in regularly checking its physical condition, cleaning the contact surface, and timely replacing aging parts. Regular inspection: It is recommended to carefully remove the old sealing strip every 250 working hours or every month when replacing it, thoroughly clean the installation groove of the glass edge and window frame, and ensure that there is no residual glue or rust. When installing a new sealing strip, it should start from one corner and gradually insert along the groove. A plastic pry bar can be used as an aid to avoid deformation or tearing caused by excessive force. After installation, the sealing strip should be checked for flatness and complete insertion into the groove, and a water test should be conducted to verify the sealing effect. In daily life, it is advisable to avoid using high-pressure water guns to directly flush the sealing strip joints at close range.